Overshoe for tires



. UNITED STATES PATENT OFFICE.

/ BROOKS J'. MULLIKIN, OF NEW YORK, N. Y.

OVERSI-IOE FOR TIRES.

' Be it known that I, BROOKS J. MULLIKIN,

a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented. a new and Improved Overshoe for Tires, of which the following .is a full, clear, and exact description.

The invention relates to tires having a casing inclosing an inflatable tubefand its object is to provide a new and-impro ed overshoe for the casing to prevent the same from being subjected to undue wear. Another object is to reduce the danger of puncturing the inner tube to a minimum. Another object is to permit the making of the overshoe of an inexpensive material thus reducing the expense usually incurred for new tires.

lVith these and other objects in view, the invention consists of certain novel features of construction as hereinafter shown and described and then specifically pointed out in tl claim.

A practical embodiment "of the invention im'epresented in the accompanying drawings forming a part of this specification, in which similar characters of reference inclicate corresponding parts in both views.

Figure 1 is a sectionalperspective view of the overshoe as applied and with part broken out; and

Fig. 2 is a sectional perspective view of the overshoe.-

The overshoe 10 fits exteriorly onto the casing 11 containing an inflatable tube 12, the casing being attached in the usual manner to a rim 13 on the folly 14. The overshoe 1O conforms in cross section approximately to that of the casing 11, and its inner face opposite the tread is provided with longitudinal and transverse projections 15 and 16 engaging corresponding recesses 17 formed in the face of the tread of the easing 11 to hold the overshoe against creeping in a longitudinal direction and against movement in a transverse direction.

The overshoe 10 is provided at its sides with thickened portions 20 having rows of Specification of Letters Patent. Patented J an, 20, 192() Application filed March 1, 1919. Serial No. 279,931. I

all whom it may concern:

recesses 21 formed in the inner faces to provide suction cups adapted to engage the sides of the casing 11 to hold the sides of the overshoe 10 firmly in position on the sides of the casing 11. It is understood that after placing the overshoe 10 in position on the casing 11 pressure is exerted against the thickened portion 20 to squeeze out some of the air in the recesses 21 to form the latter into suction cups and thereby cause said thickened portions to adhere firmly to the sides'of the casing 11 without the use of other fastening devices.

The overshoe 10 is preferably made of a cheaper material than that of which the easing ll is made and the overshoe protects the casing 11 from undue wear thus insuring long life to the overshoe.

It will also be noticed that by the use of the overshoe the inner tube 12 is not liable to be punctured owing to the overshoe. forming a protector for the casing 11 and hence also for the inner tube 12.

The overshoe can be readily slipped in position on the casing 11 and when Worn out can be readily replaced by another one.

The thickened portions 20 are preferably made of live rubber and as it is located inward beyond the center of the tire it tends to exert an inward pressure against the easing and thus firmly adheres to the sides of the casing. It will also be noticed that the live rubber portions provide a strong suction action for the cups.

Having this described my invention, I claim as new and desire to secure by Letters Patent As an article of manufacture, an overshoe BROOKS J. MULLIKIN. 

